LLM API Providers · reliability comparison
Anthropic API vs Cohere: which is more reliable? (2026)
Cohere is more reliable than Anthropic API, scoring 91.6 vs 36.8 out of 100. Over the last 90 days Anthropic API reported 36 incidents and Cohere reported 2, with effective uptime of 97.52% and 99.94% respectively. Cohere resolves incidents faster on average (2h 40m).
Data updated Nov 1, 2026 · How we score
| Metric | Anthropic API | Cohere |
|---|---|---|
| Reliability score | 36.8 | 91.6 |
| Rank (LLM API providers) | #11 | #2 |
| Uptime (90 days) | 97.52% | 99.94% |
| Incidents (90 days) | 36 | 2 |
| Partial / major outages | 23 | 1 |
| Avg time to resolve | 3h 34m | 2h 40m |
| Outages we detected | 0 | 0 |
| Transparency score | 100/100 | 100/100 |
Where Anthropic API and Cohere differ
- Anthropic API reported 18× as many incidents as Cohere over the last 90 days (36 vs 2).
- Anthropic API had 23 partial or major outages, compared with 1 for Cohere.
- Cohere fixes problems faster: 2h 40m on average, against 3h 34m for Anthropic API.
- Anthropic API's longest outage on record lasted 3d (Oct 7, 2026); Cohere's lasted 1h 18m (Feb 13, 2026).
90-day uptime
Anthropic API
Cohere
- No incidents
- Degraded
- Partial outage
- Major outage
- No data
Recent Anthropic API incidents
- Partial outageOct 27, 2026 · resolved in 41m
Elevated errors for Claude Sonnet 5.5
Affected: claude.ai, Claude API (api.anthropic.com), Claude Code, Claude Cowork
- Partial outageOct 27, 2026 · resolved in 42m
Elevated errors for Claude Sonnet 5.5
Affected: claude.ai, Claude API (api.anthropic.com), Claude Code, Claude Cowork
- Partial outageOct 25, 2026 · resolved in 32m
Elevated errors for Claude Fable 5.1
Affected: claude.ai, Claude API (api.anthropic.com), Claude Code, Claude Cowork
- Partial outageOct 25, 2026 · resolved in 1h 39m
Elevated errors for Claude Sonnet 5.5 and other models
Affected: claude.ai, Claude API (api.anthropic.com), Claude Code, Claude Cowork
- Partial outageOct 24, 2026 · resolved in 37m
Elevated errors for Claude Fable 5 and Claude Fable 5.1
Affected: claude.ai, Claude API (api.anthropic.com), Claude Code, Claude Cowork
- Partial outageOct 24, 2026 · resolved in 6m
Elevated errors for Claude Opus 5.5
Affected: claude.ai, Claude API (api.anthropic.com), Claude Code, Claude Cowork
Recent Cohere incidents
- Degraded performanceSep 1, 2026 · resolved in 4h 22m
Affected: embeddings, rerank-english-v3.0, embed-v4.0, command-a-reasoning-08-2025, rerank-v4.0-fast, All Endpoints
- Partial outageAug 5, 2026 · resolved in 57m
Documentation Content Loading Issues
Affected: Docs
Other LLM API providers to consider
- Perplexity API · #1 · 99.94% uptime
- Groq · #3 · 99.94% uptime
- Cerebras Inference · #4 · 99.88% uptime
- xAI API · #5 · 99.76% uptime